Searching for any information about Gilliam DAVIS who was listed in the Orange Co., NY Census Index as being a resident of Warwick in 1820. I believe he was the father of Mary DAVIS (born ca. 1790) who married Isaac ALLISON. I don't know where Gilliam DAVIS lived prior to being a resident of Orange County. Since his given name is rather unusual, I'm hoping someone might be able to help. Thanks in advance, Mary Allison Yonan